Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6408849 | Recovery and purification of gases used in medical processes | Jeffrey J. Spiegelman, Peter K. Shogren, Joshua T. Cook | 2002-06-25 |
| 6391090 | Method for purification of lens gases used in photolithography | Jeffrey J. Spiegelman | 2002-05-21 |
| 6361696 | Self-regenerative process for contaminant removal from liquid and supercritical CO2 fluid streams | Jeffrey J. Spiegelman, Peter K. Shogren, Joshua T. Cook | 2002-03-26 |